Accès ouvert
2020
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
New sets of CMS underlying-event parameters ("tunes") are presented for the pythia8 event generator. These tunes use the NNPDF3.1 parton distribution functions (PDFs) at leading (LO), next-to-leading (NLO), or next-to-next-to-leading (NNLO) orders in perturbative quantum chromodynamics, and the strong coupling evolution at …
am, at, by, be, us
(code pays fourni par la source)
Accès ouvert
2019
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
, respectively, are excluded.
am, at, be, us
(code pays fourni par la source)
Accès ouvert
2018
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
Abstract A search for the electroweak production of supersymmetric particles in proton-proton collisions at a center-of-mass energy of 13 TeV is presented in final states with a τ lepton pair. Both hadronic and leptonic decay modes are considered for the τ leptons. …
am, at, be
(code pays fourni par la source)
Accès ouvert
2018
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
The transverse momentum ( p T ) spectrum of prompt D 0 mesons and their antiparticles has been measured via the hadronic decay channels D 0 → K − π + and D ‾ 0 → K + π − in p …
am, at, by, be
(code pays fourni par la source)
Accès ouvert
2018
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
A search is presented for single production of a vector-like quark (T) decaying to a Z boson and a top quark, with the Z boson decaying leptonically and the top quark decaying hadronically. The search uses data collected by the CMS experiment …
am, at, be, by
(code pays fourni par la source)
Accès ouvert
2018
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, E. Asilar et autres
The relative yields of $\mathrm{\ensuremath{\Upsilon}}$ mesons produced in $pp$ and Pb-Pb collisions at $\sqrt{{s}_{\mathrm{NN}}}=5.02\text{ }\text{ }\mathrm{TeV}$ and reconstructed via the dimuon decay channel are measured using data collected by the CMS experiment. Double ratios are formed by comparing the yields of the …
am, at, be
(code pays fourni par la source)
Accès ouvert
2012
article
OpenAlex
S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan et autres
Abstract A search is performed for long-lived neutral particles decaying into a photon and invisible particles. An example of such a signature is the decay of the lightest neutralino with nonzero lifetime into a gravitino and a photon in gauge-mediated supersymmetry, with …
am, at, by, be
(code pays fourni par la source)
Accès ouvert
2011
article
OpenAlex
S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan et autres
A measurement of W+W− production in pp collisions at s=7 TeV and a search for the Higgs boson are reported. The W+W− candidates are selected in events with two leptons, either electrons or muons. The measurement is performed using LHC data recorded …
am, be, at
(code pays fourni par la source)
Accès ouvert
2010
article
OpenAlex
V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam et autres
The first LHC pp collisions at centre-of-mass energies of 0.9 and 2.36 TeV were recorded by the CMS detector in December 2009. The trajectories of charged particles produced in the collisions were reconstructed using the all-silicon Tracker and their momenta were measured …
am, at, be
(code pays fourni par la source)